Importance

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Abstract

A laser beam scanning apparatus employs a movable reflector having a large number of flat reflective sides and a deflector which shifts the laser beam at high speed across a plurality of the reflective sides. The movement of the reflector is synchronized with the deflection of the laser beam to produce a desired scan pattern in a first scan direction. The reflective sides of the movable reflector may be angled relative to each other in a second direction to produce different scan lines thereby providing an X-Y scan pattern. The combined high speed beam deflection and motion of the reflector provide scanning of the beam in parallel scan segments thereby providing high scanning speed of the beam with a high degree of resolution.

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First Claim